I posted this in the full size car section and got no replies so, I thought i would try here ...

We no longer own our last Chevy product but, stayed in the GM family with a '97 Buick LeSabre. When my '95 S10 spun a bearing and went to the salvage yard, I had a trans filter for it in the garage I never got to changing. I took it back to Fleet Farm and they allowed me to exchange it for another so, I grabbed one for this Buick we had just purchased. 2 years later, I figure I had better take the time to use it ... lol. Well now, I have a couple questions concerning this ... 1). How much fluid does dropping the pan and filter typically take? And 2). I am having a hard time finding Dexron III, which it calls for on the dip stick. I am aiming towards Castrol's High Mileage but, it isn't Dexron specific. It says "Multi vehicle" and the only warning on the jug is not to use for applications requiring Dexron IV or, above. I don't want to cause any extra problems introducing the wrong fluid so, I am asking the knowledgeable members here for answers. TIA

Old Chevies Never Die, They Just Rust Away .... used to believe this to be true but ... my S-10 died while rusting away!

I posted this in the full size car section and got no replies so, I thought i would try here ...

We no longer own our last Chevy product but, stayed in the GM family with a '97 Buick LeSabre. When my '95 S10 spun a bearing and went to the salvage yard, I had a trans filter for it in the garage I never got to changing. I took it back to Fleet Farm and they allowed me to exchange it for another so, I grabbed one for this Buick we had just purchased. 2 years later, I figure I had better take the time to use it ... lol. Well now, I have a couple questions concerning this ... 1). How much fluid does dropping the pan and filter typically take? And 2). I am having a hard time finding Dexron III, which it calls for on the dip stick. I am aiming towards Castrol's High Mileage but, it isn't Dexron specific. It says "Multi vehicle" and the only warning on the jug is not to use for applications requiring Dexron IV or, above. I don't want to cause any extra problems introducing the wrong fluid so, I am asking the knowledgeable members here for answers. TIA

I can't tell you how much ATF you'll need to replace what comes out when you drop the pan. It might be in the "Capacities" section of your owner's manual.

You won't be able to find Dexron III. It's been superseded by Dexron VI. You can mix the two without issue.

Thank you, Paul. your post did not go unnoticed. I didn't think it would be wise to mix fluids either. DAMN, has the price of ATF gone up !!! $4.50 - $5 a Quart! I remember paying right around $.99 a Quart! Where did those days go!
Any other input or thoughts on this

Old Chevies Never Die, They Just Rust Away .... used to believe this to be true but ... my S-10 died while rusting away!

Thank you, Paul. your post did not go unnoticed. I didn't think it would be wise to mix fluids either. DAMN, has the price of ATF gone up !!! $4.50 - $5 a Quart! I remember paying right around $.99 a Quart! Where did those days go!
Any other input or thoughts on this

Dexron VI is pretty expensive. I don't know if it being a full synthetic ATF has anything to do with the price.

I did a rebuild on a 4L60E in the spring of 2014. I found Valvoline DexVI the cheapest from an Amazon seller. I bought two, 6-quart cases for $40.